QUOTAON(8) manual page
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quotaon, quotaoff - turn filesystem quotas on and off
/usr/sbin/quotaon
[ -vugfp ] [ -F format-name ] filesystem...
/usr/sbin/quotaon [ -avugfp ] [ -F format-name ]
/usr/sbin/quotaoff [ -vugp
] [ -x state ] filesystem...
/usr/sbin/quotaoff [ -avugp ]
quotaon announces to
the system that disk quotas should be enabled on one or more filesystems.
The filesystem quota files must be present in the root directory of the
specified filesystem and be named either aquota.user (for version 2 user
quota), quota.user (for version 1 user quota), aquota.group (for version
2 group quota), or quota.group (for version 1 group quota).
XFS filesystems
are a special case - XFS considers quota information as filesystem metadata
and uses journaling to provide a higher level guarantee of consistency.
There are two components to the XFS disk quota system: accounting and limit
enforcement. XFS filesystems require that quota accounting be turned on
at mount time. It is possible to enable and disable limit enforcement on
an XFS filesystem after quota accounting is already turned on. The default
is to turn on both accounting and enforcement.
The XFS quota implementation
does not maintain quota information in user-visible files, but rather stores
this information internally.
quotaoff announces to the system
that the specified filesystems should have any disk quotas turned off.
- -F,
--format=format-name
- Report quota for specified format (ie. don’t perform format
autodetection). Possible format names are: vfsold Original quota format
with 16-bit UIDs / GIDs, vfsv0 Quota format with 32-bit UIDs / GIDs, 64-bit
space usage, 32-bit inode usage and limits, vfsv1 Quota format with 64-bit
quota limits and usage, xfs (quota on XFS filesystem)
- -a, --all
- All automatically
mounted (no noauto option) non-NFS filesystems in /etc/fstab with quotas
will have their quotas turned on. This is normally used at boot time to
enable quotas.
- -v, --verbose
- Display a message for each filesystem where quotas
are turned on.
- -u, --user
- Manipulate user quotas. This is the default.
- -g, --group
- Manipulate group quotas.
- -p, --print-state
- Instead of turning quotas on just
print state of quotas (ie. whether. quota is on or off)
- -x, --xfs-command enforce
- Switch on limit enforcement for XFS filesystems. This is the default action
for any XFS filesystem. This option is only applicable to XFS, and is silently
ignored for other filesystem types.
- -f, --off
- Make quotaon behave like being
called as quotaoff.
- -F, --format=format-name
- Report quota for specified
format (ie. don’t perform format autodetection). Possible format names are:
vfsold (version 1 quota), vfsv0 (version 2 quota), xfs (quota on XFS filesystem)
- -a, --all
- Force all filesystems in /etc/fstab to have their quotas disabled.
- -v, --verbose
- Display a message for each filesystem affected.
- -u, --user
- Manipulate
user quotas. This is the default.
- -g, --group
- Manipulate group quotas.
- -p, --print-state
- Instead of turning quotas off just print state of quotas (ie. whether. quota
is on or off)
- -x, --xfs-command delete
- Free up the space used to hold quota
information (maintained internally) within XFS. This option is only applicable
to XFS, and is silently ignored for other filesystem types. It can only
be used on a filesystem with quota previously turned off.
- -x, --xfs-command
enforce
- Switch off limit enforcement for XFS filesystems (perform quota
accounting only). This is the default action for any XFS filesystem. This
option is only applicable to XFS, and is silently ignored for other filesystem
types.
- -x, --xfs-command account
- This option can be used to disable quota accounting.
It is not possible to enable quota accounting by quota tools. Use mount(8)
for that. This option is only applicable to XFS filesystems, and is silently
ignored for other filesystem types.
To enable quotas
on an XFS filesystem, use mount(8)
or /etc/fstab quota option to enable
both accounting and limit enforcement. quotaon utility cannot be used for
this purpose.
Turning on quotas on an XFS root filesystem requires the quota
mount options be passed into the kernel at boot time through the Linux
rootflags boot option.
To turn off quota limit enforcement on any XFS filesystem,
first make sure that quota accounting and enforcement are both turned on
using repquota -v filesystem. Then, use quotaoff -v filesystem to disable
limit enforcement. This may be done while the filesystem is mounted.
Turning
on quota limit enforcement on an XFS filesystem is achieved using quotaon
-v filesystem. This may be done while the filesystem is mounted.
- aquota.user
or aquota.group
- quota file at the filesystem root (version 2 quota, non-XFS
filesystems)
- quota.user or quota.group
- quota file at the filesystem root
(version 1 quota, non-XFS filesystems)
- /etc/fstab
- default filesystems
quotactl(2)
, fstab(5)
, quota_nld(8)
, repquota(8)
, warnquota(8)
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